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NEIEP 800 Final Exam Questions and Answers
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Hydro elevators in low rise applications do not need an room. overhead machine Some advantages of hydros are lower equipment and building construction costs because the load of a hydro is carried to the where as the load of a traction car is carried by the . ground, building structure When drilling the jack hole, the only proper way to determine if the hole is plumb is to remove the drill stem and bit and use a. Spider Bob To plumb the hole, a spider bob is attached to a length of piano wire suspended from as near as possible to the top of theor from a fixed point on the drill rig. Hoistway When welding a joint, lay inch tack welds degrees apart, shift it 90 degrees and lay two more 1 inch tack welds 180 degrees apart. 1, 180 On power units having the motor beneath the tank, the pump may be either driven or coupled. belt, direct The purpose of the / is to silence the effect of any pulsations in the pump output and should be as close to the pump as possible. silencer, muffler
On Bolsters/Bolster Assembly, the plunger is fastened to the which is then mounted to the center of the Bolster Assembly. platen plate With wye-delta, reduced current starting is accomplished without the need for
. resistors run buttons should run the platform and sling at leveling speeds only. Temporary A consists of a piston held closed by an adjustable spring and must open at a certain pressure to prevent any further increase in pressure. relief valve A lowering valve allows the car to be lowered at a speed not exceeding 20fpm in case of power failure. manual As the oil temperature changes, the will change as well and will effect the performance, more specifically, the leveling and approach of the elevator. viscosity Be sure wellways are properlyto avoid accidental injury to you, your team or anyone working outside of our industry. barricaded Barricades around the wellway must be inches high and be capable of withstanding a lb force. 42, 200
Belted walkways use a tensioning device at the tail end to maintain the proper tension on the treadway belt and is normally maintained at lbs. 3000 (True/False) The speed governor switch on moving walks not driven by an induction motor directly connected to the driving machine (aka AC squirrel cage), will cause power to be removed from the motor and brake if the treadway speed exceeds a predetermined value, not to exceed 20% of maximum designed speed. This device shall be manually resettable. True Ensure comb segment teeth are set in the slots of the treadway deep enough so the teeth are always the upper surface of the treads. below (True/False) LULA's must provide a permanent mechanical holding device to mechanically stop and hold the car between 35 and 79 inches above the pit floor and must be held 24 inches minimum above the bottom sill. True LULA maximum rise is ft 25 Residential elevator maximum platform area is sq ft 15 Hydraulic overspeed valves will stop a downward traveling car if it exceeds speeds rated between and percent. 110, 140 Car door switches are required to operate no more than inches from full closed. 2
With chairlifts, there needs to be at leastinches of free passage width remaining on the stairway, per code. If the lift has a seat, it can be measured with the seat in the folded position. 20 The short radius spiral is a type of short radius spiral. double 90 The capacity of a chairlift shall not exceed two persons. The rated load shall not be less than lbs for a one seat lift and not less than _ lbs for a two seat lift. The speed shall not exceed fpm. 250, 400, 40 (True/False) With platform lifts, codes require a handrail between 1 and 3 inches in diameter, 1 1/2 inches minimum from the wall and 34 to 38 inches above the stair tread nosing. True Per code, where the actuation of the safeties is by a governor, the safety shall be set at a maximum speed of fpm 75 With platform lifts, the is referring to the space occupied by the lifts' travel whether it is enclosed, partially enclosed or open construction. Runway Routine tests and inspections are to be made every months for LULA's in buildings other than private residences and every for private residences. 6, year What is the minimum height of a barricade in place around an open wellway?
Higher system pressure How do you prevent rusting of the plunger if the jack unit is installed in the well hole long before the elevator will be completed? Fill it with oil (True/False)The pressure relief valve is operated electronically. False What prevents the plunger from leaving the cylinder? The stop ring The advantage of wye-delta starting is what? Starting current is lower A cushions pulsations in the oil caused by the pump. silencer You can lower a hydraulic elevator without power by using the . manual lowering valve The assembly supports the platform of a hydraulic elevator. bolster channel It is necessary to run a ground wire to the car sling of a hydraulic elevator to prevent what? electrical shock
What condition will trip a GFCI? If a supply lead is shorted to ground When using a beam clamp, a good rule of thumb is to never load the lower flange to more than % of the load which could be handled by the full area of the beam. 50 1 lb equals how many Kg? . 2,000 Kg = lbs 4, What is the best rigging equipment to use for controlling horizontal movement of the escalator as it is being lifted into position in the wellway? lever hoist What is the most common shackle used? Screw pin bow type The angle of inclination can 30 degrees by a maximum of degrees at the installation site. exceed; 1 The maximum distance between anti-slide devices on an escalator is what? 6' What happens if a step of an escalator drops more than 1/8"? The escalator stops automatically
The maximum platform area for a residential elevator is sq. ft.. 15 What is the least amount of free passage width required on the stairway for a chairlift? 20" The speed as measured along the incline of a chairlift shall not exceed
. 40 ft/min The handrail height for a residential platform lift must be between to inches above the stair tread nosing. 34; 38 For a residential platform lift the governor shall set at a maximum speed of . 75 fpm What we would normally refer to as a hoistway or hatchway in elevator terms is called a when discussing platform lifts. runway Routine periodic tests and inspections are to be made at intervals no longer than for LULA's in buildings other than private residences and no longer than for private residences. 6 months; 1 year ANSI A10.4 may be used for a Rack and Pinion installation when it is
used as a what? Personnel lift during construction
In a hydraulic system pressure= Force/area In a hydraulic system area= Force/pressure
